55216566026 has 16 divisors (see below), whose sum is σ = 90974664000. Its totient is φ = 25018031808.

The previous prime is 55216565983. The next prime is 55216566029. The reversal of 55216566026 is 62066561255.

It is not an unprimeable number, because it can be changed into a prime (55216566029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31587551 + ... + 31589298.

It is an arithmetic number, because the mean of its divisors is an integer number (5685916500).

Almost surely, 2^55216566026 is an apocalyptic number.

55216566026 is a deficient number, since it is larger than the sum of its proper divisors (35758097974).

55216566026 is a wasteful number, since it uses less digits than its factorization.

55216566026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63176893.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 55216566026 in words is "fifty-five billion, two hundred sixteen million, five hundred sixty-six thousand, twenty-six".